The Grablink frame grabber controls the camera scanning rate based on the signals received from a motion encoder. When the parts move faster, the acquisition line rate of the camera increases. When the parts move slower, the acquisition line rate of the camera decreases.

The Grablink boards interpret A/B signals from quadrature motion encoders to know in which direction (forward or backward) the part is moving.

Optionally, the Grablink can be instructed to acquire lines only when the object is moving forward or only when the object is moving backward.

A feature called Backward Motion Cancellation stops the acquisition when a backward motion is detected. The line acquisition automatically resumes when the motion is again in the forward direction, at the exact place where the acquisition was interrupted.

A Rate Converter allows the camera to acquire lines at any programmable resolution lower or higher than the resolution of the motion encoder. This gives the designer incredible freedom and flexibility during the development of the application.

A Rate Divider allows the camera to acquire lines at a resolution lower than the resolution of the motion encoder. It divides the frequency of the incoming encoder signal by a programmable integer.

Directly compatible with hundreds of Camera Link cameras available on the market

Check out our camera compatibility page (in the Support menu) to download the relevant CamFiles

Area-scan triggering capabilities

A trigger is used to start the acquisition when the part is in position. Hardware triggers come from the Grablink's I/O lines. Software triggers come from the application.

An optional trigger delay is available to postpone the acquisition for a programmable time.

A trigger decimation function allows to skip some of the triggers.

Camera exposure control allows the application to control the exposure time of the camera.

When the acquisition starts, at the appropriate timing, the Grablink board generates a signal to control an illumination device connected to one of its output lines.

Flexible line-scan camera operation with the rate converter.

The rate converter is a smart, programmable frequency multiplier/divider.

Used with motion encoders and line-scan cameras, it allows the user to choose the aspect ratio of the pixels in the image.

It provides a way to calibrate the acquisition chain to easily reach square (1:1 aspect ratio) pixels.

The Coaxlink and Grablink cards are dependable industrial frame grabbers that provide robust and stable image acquisition from the fastest digital cameras available. They feature precise camera control and synchronization functions.